Energy harvesting through acoustic field for powering low power electronic devices

2017 ◽  
Author(s):  
Sudesna Pattanaik ◽  
Samikshya Mishra ◽  
Sarbasri Haider ◽  
Satyanarayan Bhuyan
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Acoustic Field ◽  
Electronic Devices ◽  
Power Electronic

Discussion of “On the Role of Nonlinearities in Vibratory Energy Harvesting: A Critical Review and Discussion” (Daqaq, M., Masana, R., Erturk, A., and Quinn, D. D., 2014, ASME Appl. Mech. Rev., 66(4), p. 040801)

2014 ◽  
Vol 66 (4) ◽  
Author(s):  
B. P. Mann
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Critical Review ◽  
New Technologies ◽  
Electronic Devices ◽  
Power Source ◽  
Power Electronic ◽  
Motivating Factors ◽  
Vibratory Energy Harvesting

The authors have written a nice review on the purposeful use of nonlinearity in vibratory energy harvesting. The current limitations of batteries and advancements in low-power electronic devices are identified as two motivating factors for energy harvesting research. The underlying idea is that vibratory harvesters could replace batteries as a power source or even could enable new technologies. The authors identify the primary limitations associated with linear vibratory harvesters and describe several attempts, along with some of their pitfalls, to overcome these limitations. The article then provides a critical review of recent research focused on the use of nonlinearity to improve the performance of vibratory harvesters.

scholarly journals Energy Harvesting From Torsional Vibrations Using a Nonlinear Oscillator

2016 ◽  
Author(s):  
Ben Gunn ◽  
Panagiotis Alevras ◽  
Stephanos Theodossiades
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Wireless Sensors ◽  
Magnetic Levitation ◽  
Electronic Devices ◽  
Excitation Frequency ◽  
Electrical Energy ◽  
Torsional Vibrations ◽  
Ambient Vibrations ◽  
Frequency Spectra

Harvesting ambient energy in a variety of systems and applications is a relatively recent trend, often referred to as Energy Harvesting. This can be typically achieved by harvesting energy (that would otherwise get wasted) through a physical process aiming to convert energy amounts to useful electrical energy. The harvested energy can be thermal, solar, wind, wave or kinetic energy, with the last class mainly referring to harvesting energy from vibrating components or structures. More often these oscillations are error states from the systems’ ideal function and through harvesting this potentially wasted energy could be reclaimed and become useful. Regardless of the generally low power output of the devices designed to harvest energy from vibrations, their use remains an attractive concept, which is mostly attributed to the growing use of modern electronic devices that exploit the low power requirements of semi-conductors. Energy Harvesting applications are often met in situations where a network of essential electronic devices, such as sensors in Structural Health Monitoring or bio-implantable devices, becomes hardly accessible. Harvesting ambient vibrations to power up these devices offers the option to utilize wireless sensors rendering these systems autonomous. Typical cases of systems, where ambient vibrations are ubiquitous are met in automotive and aerospace applications. Besides their potentially adverse impact, the energy carried by vibrating parts could be harvested, such that wireless sensors are powered. In this paper, a concept for harvesting torsional vibrations is proposed, based on a concept that employs magnetic levitation to establish a nonlinear Energy Harvester. Experience has shown that linear harvesters require resonant response to operate, often leading to low performance of the device when the excitation frequency deviates from resonance conditions. This is why harvesters with essential nonlinearity are preferred, since they are able to demonstrate high response levels over wider frequency regions. Herein, the conducted study aims to demonstrate the functionality of this concept for torsional systems. A mathematical model of the coupled nonlinear electromechanical system is established, seeking preliminary estimates of the harvested power. The compelling attribute of this system lies in the dependency of its linear natural frequency on the excitation frequency, which is found to cause multiple response peaks in the corresponding frequency spectra. Moreover, the selection of the static equilibrium of the levitating magnet is found to greatly influence the system’s response.

scholarly journals Foreword Special Issue on Advanced Technology for Ultra-Low Power Electronic Devices

2016 ◽  
Vol 4 (5) ◽  
pp. 203-204
Author(s):  
Paul R. Berger ◽  
Albert Chin ◽  
Akira Nishiyama ◽  
Meikei Ieong
Keyword(s):  
Low Power ◽  
Electronic Devices ◽  
Advanced Technology ◽  
Power Electronic ◽  
Special Issue ◽  
Ultra Low Power

scholarly journals Фотовольтаические характеристики светодиодов с двумя последовательными p-n-переходами

2021 ◽  
Vol 47 (1) ◽  
pp. 47
Author(s):  
А.А. Соколовский ◽  
В.В. Моисеев
Keyword(s):  
Low Power ◽  
Spectral Range ◽  
High Power ◽  
Power Supply ◽  
Output Voltage ◽  
Optical Radiation ◽  
Electronic Devices ◽  
Power Electronic ◽  
Direct Power ◽  
Photovoltaic Characteristics

In this work, we investigated the photovoltaic characteristics of high-power IR LEDs manufactured by OSRAM GmbH based on structures with two vertically stacked p-n junctions. The spectral range of operation of PVTs based on LEDs with different radiation wavelengths was determined, and it was shown that the efficiency of photovoltaic conversion in them reaches more than 30% at a wavelength of 808 nm. The high (up to 2.6 V) output voltage of such converters allows them to be used for direct power supply of low-power electronic devices with optical radiation.

scholarly journals Voltage control of magnetism in multiferroic heterostructures

2014 ◽  
Vol 372 (2009) ◽  
pp. 20120439 ◽  
Author(s):  
Ming Liu ◽  
Nian X. Sun
Keyword(s):  
Low Power ◽  
Communication Systems ◽  
Giant Magnetoresistance ◽  
Electronic Devices ◽  
Random Access ◽  
Microwave Devices ◽  
Power Electronic ◽  
Ultra Low Power ◽  
Multiferroic Heterostructures ◽  
Field Manipulation

Electrical tuning of magnetism is of great fundamental and technical importance for fast, compact and ultra-low power electronic devices. Multiferroics, simultaneously exhibiting ferroelectricity and ferromagnetism, have attracted much interest owing to the capability of controlling magnetism by an electric field through magnetoelectric (ME) coupling. In particular, strong strain-mediated ME interaction observed in layered multiferroic heterostructures makes it practically possible for realizing electrically reconfigurable microwave devices, ultra-low power electronics and magnetoelectric random access memories (MERAMs). In this review, we demonstrate this remarkable E-field manipulation of magnetism in various multiferroic composite systems, aiming at the creation of novel compact, lightweight, energy-efficient and tunable electronic and microwave devices. First of all, tunable microwave devices are demonstrated based on ferrite/ferroelectric and magnetic-metal/ferroelectric composites, showing giant ferromagnetic resonance (FMR) tunability with narrow FMR linewidth. Then, E-field manipulation of magnetoresistance in multiferroic anisotropic magnetoresistance and giant magnetoresistance devices for achieving low-power electronic devices is discussed. Finally, E-field control of exchange-bias and deterministic magnetization switching is demonstrated in exchange-coupled antiferromagnetic/ferromagnetic/ferroelectric multiferroic hetero-structures at room temperature, indicating an important step towards MERAMs. In addition, recent progress in electrically non-volatile tuning of magnetic states is also presented. These tunable multiferroic heterostructures and devices provide great opportunities for next-generation reconfigurable radio frequency/microwave communication systems and radars, spintronics, sensors and memories.

Implementation of Low-Power Electronic Devices Using Solution-Processed Tantalum Pentoxide Dielectric

2018 ◽  
Vol 28 (28) ◽  
pp. 1704215 ◽  
Author(s):  
Jungwoo Heo ◽  
Song Yi Park ◽  
Jae Won Kim ◽  
Seyeong Song ◽  
Yung Jin Yoon ◽  
...  
Keyword(s):  
Low Power ◽  
Electronic Devices ◽  
Tantalum Pentoxide ◽  
Power Electronic ◽  
Solution Processed

A 140 mV Self-Starting 10 mW DC/DC Converter for Powering Low-Power Electronic Devices from Low-Voltage Microbial Fuel Cells

2012 ◽  
Vol 8 (4) ◽  
pp. 485-497 ◽  
Author(s):  
Nicolas Degrenne ◽  
Bruno Allard ◽  
François Buret ◽  
Salah-Eddine Adami ◽  
Denis Labrousse ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Power ◽  
Microbial Fuel Cells ◽  
Low Voltage ◽  
Electronic Devices ◽  
Power Electronic
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